10021181457 has 16 divisors (see below), whose sum is σ = 16074076160. Its totient is φ = 5425000272.

The previous prime is 10021181413. The next prime is 10021181479. The reversal of 10021181457 is 75418112001.

It is not a de Polignac number, because 10021181457 - 2¹⁴ = 10021165073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021181957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12557473 + ... + 12558270.

It is an arithmetic number, because the mean of its divisors is an integer number (1004629760).

Almost surely, 2^10021181457 is an apocalyptic number.

It is an amenable number.

10021181457 is a deficient number, since it is larger than the sum of its proper divisors (6052894703).

10021181457 is a wasteful number, since it uses less digits than its factorization.

10021181457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25115772.

The product of its (nonzero) digits is 2240, while the sum is 30.

Adding to 10021181457 its reverse (75418112001), we get a palindrome (85439293458).

The spelling of 10021181457 in words is "ten billion, twenty-one million, one hundred eighty-one thousand, four hundred fifty-seven".